Cartrack sucks!

I have a complain about cartrack, they installed a device on my car 2 weeks ago(5/08/2020) and the device has not been functional since then but the technician told me it's fine, the only thing that I saw being functional was the panic button. I realised that the device is not working when I checked the car location on their website n it gave me the wrong location at the time(6/8/2020), I tried again days after n I still got wrong location. I let them know about the problem, they couldn't even locate the car from their system too so they put in a request for repair for Wednesday (19/08/2020) which was yesterday, and no one came for the "repair" . I called them n I had to wait +5 minutes to be transferred to the relevant department. I checked the panic button yesterday n it's no longer working. What exactly am I paying for? I am paying a service that is not working for me!